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Recognised as Colour

#91AADA

  • #91AADA
  • Blue
  • Dark
  • Nearest: Light steelblue

#91AADA is a blue with RGB values 145, 170, 218 and HSL 219°, 50%, 71%. It is a dark colour, so black text on it reaches 9:1 contrast (AAA for normal text). The nearest named colour is Light steelblue.

Colour values

#91AADA#91AADA
HEX#91AADA
RGBrgb(145, 170, 218)
RGB (0–1)0.5686, 0.6667, 0.8549
RGB percentages56.9%, 66.7%, 85.5%
HSLhsl(219.5, 49.7%, 71.2%)
HSV / HSBhsv(219.5, 33.5%, 85.5%)
CMYK33.5%, 22%, 0%, 14.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer9,546,458
CSS custom property--colour: #91AADA;

Brightness & contrast

Relative luminance0.39831WCAG 2.x, 0 is black and 1 is white
Perceived brightness169.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.97:1
Contrast with white2.34:1WCAG normal text: Fail
Contrast with black8.97:1WCAG normal text: AAA
Greyscale equivalent#A8A8A8
Inverted#6E5525

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#9AADDCno red cones; affects about 1% of men; ΔE 2.4 from the original
Deuteranopia#93A6D9no green cones; the most common form, about 1% of men; ΔE 2.9 from the original
Tritanopia#7BB4BAno blue cones; rare, and affects men and women equally; ΔE 26.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.34:1WCAG large text: Fail
Contrast with black, large text8.97:1WCAG large text: AAA

Named colours

Light steelblue · ΔE 15.5Light skyblue · ΔE 17.1Steel blue · ΔE 18.9Sky blue · ΔE 21Light slate grey · ΔE 21.4Thistle · ΔE 23.3
Nearest named CSS colourLight steelblue (#B0C4DE)ΔE 15.47, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DAC191
Analogous#91CEDA, #9C91DA
Triadic#DA91AA, #AADA91
Split complementary#DA9D91, #CEDA91
Tetradic#DA91CF, #DAC191, #91DA9D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#FFFFFF
Lighter +20%#DDE5F4
Lighter +10%#B7C7E7
Darker −10%#6B8DCD
Darker −20%#456FC0
Darker −30%#35599D
Darker −40%#284377
More saturated +25%#7FA4EC
Less saturated −25%#A3B0C8

Channel breakdown

R145
G170
B218
Red145 (56.9%)
Green170 (66.7%)
Blue218 (85.5%)
Hue219.45°
Saturation (HSL)49.66%
Lightness71.18%
Dominant channelBlue
Hex per channelR 91 · G AA · B DA

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Every value on this page was computed from “91aada” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.